Pump



Jan. 5, 1943. F. w. RYAN, JR

PUMP

Filed Oct. 31, 1940 2 Sheets-Sheet ,1

A iiorney Jan. 5, 1943. F. w. RYAN. JR

PUMP

2 Sheets-Sheet 2 Filed Oct. 31, 1940 In ventor Afforney V l atented Jan. 5,

UNITED STATES PATENT ounce YUM! Floyd W. Ryan, In, Dalton, N. Y. Application October 31, 1940, Serial No. 363,750

2 Claims.

This invention appertalns to new and useful improvements in pumps and more particularly to a pump oi the deep well type.

The principal object of the present invention is to provide a deep well pump which is substan: tially automatic in operation.

Another important object oi the present invention is to provide a deep well water pump which is adapted for automatic and continuous operation depending upon stored water and the pressure incident thereto.

Still another important cblct oi the invention is to provide a deep well pump which will operate offset with respect to the well and without the usual rod and the like now employed in overhead pumps.

Other objects and advantages oi the invention will become apparent to the reader oi the following specification.

In the drawings:

Figure 1 represents a' diagrammatic view showing the various connections between the elements involved.

, Figure 2 is an enlarged fragmentary vertical sectional view through the plunger assembly.

Figure 3 is a vertical sectional view throu h one oi the magnetic valves.

Figure 4 is a vertical sectional view through the thermal switch.

Figure 5 is a side elevational view, partly in sectionshowing a modification oi the invention.

Figure 6 is a side elevational view of another type of pumping means.

Referring to the drawings wherein like numerals designate like parts. it can be seen that.

numeral 5 denotes, a storage tank. while numeral 6 denotes an electric motor ior operating a centrifugal pump Numeral 8 denotes a take -off pipe for the tank 5.

Astand pipe 9 extends down into the ground and terminates in a plunger assembly Iii. which consists of a lower cylinder I of a certain diameter and in which operates a substantially large plunger I 2. and a cylinder l3 of considerably less diameter thanthe cylinder rising from the cylinder l3 and having a small plunger I4 operative therein.

The plunger I4 is connected to the plunger I21 through means of a tube It and a chamber |6a.l

the latter being located adjacent the plunger I2;

and connected thereto by connecting elements: l2a.

At the top of the chamber lid is a circumferential flange A onwhich is a packing or resillent element 8, the two elements acting as a checkvalve in respect to the lower end of the barrel i3.

In the bottom of the chamber lie is a check valve 0 while in the top of the plunger I2 is a check valve H. The spider I8 is provided across the lower end of the cylinder H and between this andthe bottom of the plunger I2 is inter- .posed a compression spring iii. A mesh strainer 20 is provided at the bottom of the cylinder Extending laterally irom the cross-shaped fitting. 2| at the upper end of the stand pipe 9 are the pipes 22 and 23 which have the magnetic valves 24 and 25 therein. Each valve consists of a shell 26 having a valve seat 21 therein against which is operative a valve element 28 having a stem 29 extending therefrom and connected to the plunger 30 of a solenoid 3| mounted in a shell 32 rising from the valve body 26.

The pipe 22 extends to the inlet side of the centrifugal pump 1 while from the outlet side to the pipe 23 at a point between the valve 25 .and the tank 5. As can be seen in Figured. a

manually operated valve 33 is provided in the pipe 23 between the pipe 33a and the tank 5.

Rising from the fitting 2| is a thermal switch 34. This switch 34 consists of a case 35 having suitable supporting means at its bottom side ior mounting on the fitting 2|. A T-shaped bracket of insulation denoted by numeral 36 supports an outstanding bi-metal element 31 on which is located a heat coil 33. One end of this heat coil is connected to the bi-metal element 31 while the other end is connected to a contact 33. On the case 35 are binding posts E. F and G. the binding post G being connected to a} source of current. while the binding posts E and F are connected to the valves 24 and 25. The

binding posts E and F have stationary contacts 4| and 42, while the current supply binding post G is connected by a jumper G to the bi-metal element 31. A fluid pressure type switch is provided on the tank 5 and generally referred to by numeral 43.

The pump. pipes and cylinders are always iull oi 'water and the plunger I2, we will assume. is at the top oi the cylinder The thermal switch 34 is set to switch the current from the valve 24 to the valve 25 intermittently. The pressure switch 43 is set to supply current to the motor 6. Water from the pump and-tank builds up the pressure in the stand pipe 9 forcing the piston |4 downwardly and, in turn. forcing the piston valve down compressing the spring l9. On this downward stroke the valve H in the large piston opens letting water fill the cylinder above the large piston.

A slightly modified formof the invention is shown in Figure 5. This is a hand operated type --raised up past the port to spout II, the pressure barrel where it is connected by a link 54 to a 1" pump handle SI plvotally connected as at 58 to a post 51 on the top of the barrel 6!. This is a conventional type of pump.'but utilizing the plunger assembly generally referred to by numeral ill. I

As water is withdrawn from'the system, the pressure in tank drops approximately pounds. At this point the-pressure switch 43 closes. the circuit to motor 5 and to thermal switch 34. The thermal switch 34 is cold and current flows from G through bi-metal strip 31 (see Figure 4) and through contact point 4| and from there by way of terminal E to open electric valve 2!. This electric valve is of a magnetic type shown in Figure 3.

Pressure from the tank is released through the stand pipe 9 and through tube IB'to the chamber Ilia. The pressure holds valve 0 in closed position. This pressure forces the entire plunger assembly down, compressing spring i9.

As the plunger assembly travels downward, water tospout Ii. This reciprocatory action supplies pressure to the plunger assembly which forces it down as the spring I! raises the plunger assembly-iat each stroke. Pressure forces the plunges'assembly down compressing spring II and passes water through valve l1 to the space around-the chamber "a. As the piston 42 is on the plunger assembly is relieved and the spring pushes the plunger assembly up to its stop position. As the plunger assembly travels up, water around the chamber vlIa is forced through valve c into chamber Ila up through a stand pipe Q and out through spout ll.

Figure .6 of the drawings discloses a modified form of pumping apparatus, the pump cylinder 48 of which corresponds to the centrifugal pump 1 of the system first described or the pump cylin-' der in of the hand pump type shown in Figure 5. The pump cylinder SI has a piston ll operative therein and actuated by a cross head 08 connected by a connecting rod 44 with a crank i, this crank 65 being operated-by a pulley over which is trained a belt 41 from a small pulley ll driven by an electric motor 4!. Numeral 42 denotes the eduction pipe which connects with the cylinder I! in the manner the pipe I does in Figure 1. In Figure 6 numeral ll represents the discharge pipe from the pump 8!.

While the foregoing specification sets forth the invention in specific terms, it is to be underthe bi-metal strip 31 from a position engaging contact 4| to the contact 42. When it contacts the contact 42, (as shown in Figure 4) the current then travels through the bi-metal strip itself 31, The resistance of the bi-inetal strip 31 is not as great as winding 38, consequently,

heat is not generated and the strip 31 cools. As the strip cools, it regains its normal shape and moves from contact 42 to contact 4!. As it leaves contact 42 the current again flows through the winding 28 only. This again heats the bi-metal strip as the cycle is repeated. While the pump is in operation the switch constantly turns this current first from one electric or solenoid valve and then to the other.

After a short interval, depending on the switch I4, current is switched from solenoid valve 25 to solenoid valve 24, opening the latter. The pressure on the tank 5 is then relieved from the stand pipe 9 and the suction from pump exerts a drawing pressure on the water in the stand pipe 9. As the pressure in stand pipe 9 is relieved, sprlngl9 raises the plunger assembly. The water in the space around and above chamber lBa is forced through valve 0 and up into stand pipe 9, where it travels through pump 1, pipe 33a into tank 5. Switch 34 then closes solenoid valve 24, and opens solenoid valve 25. The cycle is then repeated until sufficient pressure is built up in tank 5 to operate switch 43 which opens the circuit so that the pump stops.

The operation of the hand pump type shown in Figure 5 is substantially the same as that of the electric type just described. The main difference is that the pressure which operates the plunger assembly is supplied by manual force.

A piston 52 travels up and down past the port stood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. In a pumping system, a stand pipe, a plunger unit, said plunger unit being located at the lower end of the stand pipe and consisting of a large cylinder. a small cylinder rising from the large cylinder and connected to the stand pipe, correspondingly sized plungers in the cylinders, check valves in the plunger-s and a connection between the plungers, a storage tank, a pump having its inlet in communication with the stand pipe and its discharge in communication with the tank consisting of a centrifugal pump and an electric motor driving the same, pressure means for controlling the said motor, a fiow conduit connecting said tank to the stand pipe, a magnetic valve in the line from the stand pipe to the pump inlet, a magnetic valve in the flow line, from the tank to the stand pipe, and thermal means for controlling said magnetic valves.

2. In a pumping system, a stand pipe, a plunger unit. said plunger being located at the lower end of the stand pipe and consisting of a. large cylinder, a small cylinder rising from the large cylinder and connected to the stand pipe, correspondingly sized plungers in the cylinders, check valves in the plunger-s and a connection between the plungers, a storage tank, a pump having its inlet in communication with the stand pipe and its discharge in communication with the tank consisting of a centrifugal pump and an electric motor driving the same and pressure means for controlling the said motor, a flow line from the tank to the stand pipe and electro-magnetic valve means for controlling the flow of water from the stand pipe to the pump and from the tank to the stand pipe.

HDYD W. RYAN, J1. 

